ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Carbonyl Complexes of Molybdenum and Tungsten of Coordination Number Seven, II. The Complexes MHal2(CO)3L2 and MHal2(CO)2L3The complexes WHal2(CO)4L (3 - 5, Hal = I, Br, Cl; L = PMe3, AsMe3, SbMe3) readily undergo CO substitution. Thereby the complexes WHal2(CO)3LL′ (7 - 13, 24, L′ = PMe3, AsMe3, SbMe3, AsMe2H, P(OMe)3, PPh3, Py, I) can be prepared. Compounds of this type are also accessible from [WHal2(CO)4]2 with PMe3, AsMe3, or SbMe3 as well as from Mo(CO)6 and W(CO)6 resp., with AsMe3Hal2. Subsequent reactions of such interconversions are the elimination of CO and further substitution yielding the complexes MHal2(CO)2(PMe3)3 (25, 26, M = Mo, W; Hal = I, Br, Cl).
Notes:
Die Komplexe WHal2(CO)4L (3 - 5, Hal = I, Br, Cl; L = PMe3, AsMe3, SbMe3) unterliegen sehr leicht einer CO-Substitution. Dadurch lassen sich aus ihnen die Komplexe WHal2(CO)3LL′ (7 - 13, 24, L′ = PMe3, AsMe3, SbMe3, AsMe2H, P(OMe)3, PPh3, Py, I) darstellen. Verbindungen dieses Typs sind auch aus [WHal2(CO)4]2 mit PMe3, AsMe3 und SbMe3 sowie aus Mo(CO)6 bzw. W(CO)6 mit AsMe3Hal2 zugänglich. Folgereaktionen solcher Umsetzungen sind die Abspaltung von CO sowie weitere Substitution zu den Komplexen MHal2(CO)2(PMe3)3 (25, 26, M = Mo, W; Hal = I, Br, Cl).
Additional Material:
3 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19821151109
